DIY spindle encoder problem

ටොමීලයිට්
බරපතල ලෙස:woohoo: translate

slot width of the disc should be equal with teeth width or could be different with each other

DinukaShehan wrote: ටොමීලයිට්
බරපතල ලෙස:woohoo: translate

Sri lanka ! Nice !

What you want is equal on/off time of the A ( and B if its present ) signals.
This will allow the maximum count rate at a given base thread rate.

This usually means that the slots and teeth should be equal width,
though optical sensor design and sensitivity will also affect the on/off times.

I think equal width is a good thing to aim for, but if its too difficult, unequal slot/tooth
spacing will still work, it will just limit your maximum RPM.

Its also worth considering that unless you are threading very
small diameter parts you may not need the encoder to track
the spindle at more than say 1000 RPM

PCW wrote: This usually means that the slots and teeth should be equal width,
though optical sensor design and sensitivity will also affect the on/off times.

I think equal width is a good thing to aim for, but if its too difficult, unequal slot/tooth
spacing will still work, it will just limit your maximum RPM.

I cut slots with Universal milling machine and aid with indexing head so I can get equal pitch.
But I don't have proper cutter for suit this slot because of that I use fly cutter.
What happen when slot and teeth width precisely not equal.

Note that these assume the slots are 50% open so you get close to square

Then can't I get square with unequal slots and teeth?